Climate averages 1991–2020

Deir ez-Zor weather
in May.

A hot, very dry month: the 5th warmest and the 5th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 32.5°C Daytime mean, May
Average low 19.1°C Night-time mean, May
Rainfall 8.2 mm 2 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Deir ez-Zor · average highYear overview

May is a hot month in Deir ez-Zor: daytime highs average 32.5°C and nights cool to about 19.1°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 8.2 mm of rain on roughly 2 days, which makes May a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 00 min on an average May day.

The nearest other city in this atlas is Ar Raqqah (123 km away). In May its highs average 31.5°C, 1.0°C cooler than Deir ez-Zor, with 9.7 mm of rain.

Among the 18 cities listed in Syria, Deir ez-Zor ranks 1st of 18 for the warmest May highs and 5th of 18 for the driest May (rainfall, lowest first). The mean May high of those 18 cities is 28.6°C; Deir ez-Zor is 3.8°C warmer than that mean.

From May to June, average highs rise by 4.9°C to 37.4°C, and monthly rainfall falls from 8.2 mm to under 1 mm.

The annual picture

May in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 051015202530354045 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Deir ez-Zor climate table

1991–2020
Monthly climate averages for Deir ez-Zor, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 12.5°C3.5°C3.5°C255.510.110 h
February 15.1°C4.8°C4.8°C234.810.911 h
March 20.5°C8.7°C8.7°C214.511.912 h
April 26.6°C13.7°C13.7°C122.613.113 h
May, selected 32.5°C19.1°C19.1°C8.21.614.014 h
June 37.4°C23.6°C23.6°C0.40.114.514 h
July 40.4°C26.0°C26.0°C0.10.014.314 h
August 40.0°C26.0°C26.0°C0.10.113.513 h
September 35.7°C22.9°C22.9°C0.40.112.412 h
October 29.3°C17.5°C17.5°C9.81.711.311 h
November 19.9°C9.6°C9.6°C193.510.310 h
December 13.9°C5.0°C5.0°C245.09.810 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

May in nearby cities

Distance from Deir ez-Zor

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Deir ez-Zor) is explained once on the Deir ez-Zor year overview and on the Sources, method and limits page.